[AT] jd 70 diesel tractor
Dean VP
deanvp at att.net
Fri Apr 25 19:26:19 PDT 2014
There is a cast iron partition between the crank case and the transmission chamber. It holds gallons of oil. I would ne very surprised if the crankcase oil was transferring to the transmission chamber.
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-----Original message-----
From: David Rotigel <rotigel at me.com>
To: Antique tractor email discussion group <at at lists.antique-tractor.com>
Sent: Sat, Apr 26, 2014 01:38:48 GMT+00:00
Subject: Re: [AT] jd 70 diesel tractor
I'm surprised that no one has suggested checking the fluids in the transmission/differential to see if it's OVER full.
Dave
On Apr 25, 2014, at 9:20 PM, Dean VP <deanvp at att.net> wrote:
> Ok, I found an original I & T Manual JD-8, dated 1956, $2.50 for the 70
> Diesel. Crankcase holds 12 quarts. Need to understand better what the 5
> quarts is all about! Remember this is a diesel so it will burn oil pretty
> efficiently when mixed with diesel fuel. .
>
> Dean VP
> Snohomish, WA 98290
>
> “ . . . The tree of liberty must be refreshed from time to time with the
> blood of patriots and tyrants. It is it's natural manure . . . “ Jefferson
>
>
> -----Original Message-----
> From: at-bounces at lists.antique-tractor.com
> [mailto:at-bounces at lists.antique-tractor.com] On Behalf Of joehardy at epix.net
> Sent: Friday, April 25, 2014 5:37 PM
> To: Antique tractor email discussion group
> Subject: Re: [AT] jd 70 diesel tractor
>
> Greg, It is probably sucking the oil up past the rings and burning it in the
> combustion chamber. I owned an early VW Rabbit diesel and when the rings
> became worn, the engine would begin to run away with its self without
> stepping in the throttle because the engine was running on crankcase oil.
> My car manual said that if you experienced that condition when in neutral,
> get away from the car because the engine would crank up so fast that it
> would blow itself apart. I believe you need the take the engine apart. Keep
> us informed as to what you find....Joe Hardisky, Ryman Farm Dallas, PA On
> Friday, April 25, 2014 7:44 PM, Dean VP <deanvp at att.net> wrote:
>
> I am unable to put my hands on a JD 70 Diesel Operators Manual at the moment
>> but a 720 Diesel takes 9 quarts of oil in the crankcase. I would
>> suspect the
>> 70 Diesel to be very similar if not identical. So the 5 quarts
>> mentioned trouble me. The way the Two Cylinder Engine is designed with
>> the oil pump in the very bottom of the crankcase, I find it strange
>> that the oil pressure goes to zero if there is still 4 quarts of oil in
>> the engine. Sum ting wong here. I suppose it is possible that the fuel
>> pump is sucking oil out of the crankcase and feeding it to the engine.
>> OR one or both piston's oil rings are broken or stuck Or a valve
>> guide is broken or something. But to suck up that much crankcase oil in
> such a short time it has to be something major.
>>
>> Dean VP
>> Snohomish, WA 98290
>>
>> " . . . The tree of liberty must be refreshed from time to time with
>> the blood of patriots and tyrants. It is it's natural manure . . . "
>> Jefferson
>>
>>
>> -----Original Message-----
>> From: at-bounces at lists.antique-tractor.com
>> [mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Dean VP
>> Sent: Friday, April 25, 2014 3:35 PM
>> To: Antique tractor email discussion group
>> Subject: Re: [AT] jd 70 diesel tractor
>>
>> I need to look at a 70 D manual but 5 quarts of oil doesn't sound
>> anywhere close to enough oil to go from completely empty to full in the
>> main engine crankcase. It sounds like the oil is is being burned in
>> the combustion chamber. But I would think it would be smoking badly.
>> Where are you checking the oil level?
>>
>> Connected by DROID on Verizon Wireless
>>
>> -----Original message-----
>> From: Tyler Juranek <tylerpolkaman at gmail.com>
>> To: Antique tractor email discussion group
>> <at at lists.antique-tractor.com>
>> Sent: Fri, Apr 25, 2014 22:17:18 GMT+00:00
>> Subject: Re: [AT] jd 70 diesel tractor
>>
>> Greg,
>> Even if it was sold as is, and the dealer says he stands behind what he
>> sells, I'd call the dealer.
>> Did the oil go on the floor?
>> I wonder if the tractor is out of time?
>> Did the guy put new wires or anything in the distributer?
>> Good luck!
>>
>> On 4/25/14, Greg Hass <ghass at m3isp.com> wrote:
>>> Yesterday my brother bought a John Deere 70 diesel tractor with pony
>>> start. He drove it home the 4 miles while I followed. When I drove up
>>> he was putting it in the shed. It didn't quite sound right to me but
>>> I thought it might be the different sound caused by being under the roof.
>>> Then he said that most of the trip it didn't have any oil pressure
>>> but he thought the gauges didn't work. I said that that type of gauge
>>> almost never gave trouble; copper tube to the gauge, not electrical.
>>> We checked the oil level and it appeared empty; not good. We put in 5
>>> or so quarts to the full mark and restarted the engine. The oil
>>> pressure rose right to the top but soon started to drop and within
>>> less than 2 minutes was back to zero. We shut it off and checked the
>>> oil again; it was completely empty with no sign of where it went. I
>>> thought maybe we should try more oil again, but by this time my
>>> brother wanted nothing to do with it. He did call a guy in the 2
>>> cylinder club who is considered to be knowledgeable and all he could
>>> think of was a cracked block; however there appears to be no oil in
>>> the
>> water or water in the oil.
>>> What puzzles me is where could 5 quarts of oil go to in less than 2
>>> minutes? Also, it sounds like it is not firing on both cylinders and
>>> has another funny sound like a leaking valve. Over two days when he
>>> was looking at it they started it at least 6 times and drove it back
>>> and forth and it ran perfect. The reason for starting it so much was
>>> that earlier a young guy who said he knew all about these tractors
>>> had tried to start it without the dealer present. Well, he turned the
>>> dash mounted fuel valve the wrong way and turned it so tight that
>>> when he went to turn it back it twisted off the valve. In the
>>> process of fixing the valve some dirt must have gotten in and the
>>> pony motor wasn't getting enough gas to run right. After getting the
>>> gas problem fixed they started the tractor several times to make sure
>>> it was alright. As I said, at that time it started and ran perfect.
>>> It has good paint, good tires,wide front,power steering but no 3 pt.
>>> The person that traded it said on the phone the the only thing wrong
>>> when traded was a small leak in a steel hydraulic line, which we had
>>> already noticed. The dealer said he always stands behind what he
>>> sells, but he did put "as is" on the bill so we wouldn't go there at
>>> this time. It seemed like a good tractor, but with this problem it's
>> worthless. Any ideas from the list?
>>> Greg Hass
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
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>>
>> --
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